What are the preparations before welding stainless steel plates?

Stainless steel plate is a kind of composite plate with excellent corrosion resistance and corrosion resistance. Before welding, it needs a lot of preparation process, such as materials, tools, processing technology and so on.

First of all, the stainless steel plate should be cleaned up before and after welding, and the surface of stainless steel plate should not be dirty or iron filings. If the surface of stainless steel plate is not clean, it needs to be cleaned in time.

Secondly, when welding, it is also necessary to select suitable materials, for example, to select the deposited metal with the content of alloy element not less than the selected composite layer. In the choice of electrode, the same should choose the appropriate model, as long as this can be in the welding time, the stainless steel clad material dilution to supplement.

In addition, before welding, the first to be cutting, stainless steel plates in the cutting of the need to ensure that the groove of the board processing, the use of mechanical processing, so that the cutting groove after the cutting surface is usually more smooth. In addition, can also use the shears cutting or plasma cutting way, but to pay attention to is, in cutting, double layer stainless steel plate is up to, and also to prevent slag drop in the complex layer.

The groove must be checked before cutting the stainless steel plate. The groove must conform to the size and specification of the drawing. When selecting the groove, the groove should be selected for easy operation, which can reduce the filling technology after welding. In the groove processing, but also choose the mechanical way, if use other ways, first of all to remove the stainless steel plate on the oxide layer. After the completion of the groove processing, but also to the surface inspection, excellent cutting surface, stainless steel plate on the groove is not layered or cracks, otherwise it is unqualified products, need to be re processed or repaired.

In the selection of stainless steel plate welding parts also have certain requirements, especially in the thickness must be controlled well, to the thickness of the layer as the standard to choose. Usually, the same material with the same metal color as the surface of the stainless steel plate is usually selected. The most important is the stainless steel plate in welding, the side of the annex welding should be carried out according to the requirements of the drawings reasonable, need to ensure accuracy.